Electbicaliit-cowtboi



R.A.B0NHAM.

ELECYRICALLY CONTROLLED TRANSMISSION MECHANISM.

APPLICATION FILED JUNE I2, 1918.

1,311,748. .latented July 29, 1919.

5 SHEETS-SHEET l.

W I 0 f 0 f r & MW I R? v k ,0 g 0 k I fa! 0 a; Hi 0 l l w i HHLJ J N i? g k A snow/flier, flA'fiaa/zmb n A. BONHAM.

ELECTRKCALLY CON ROLLED TPANSMISSION MECHANISM.

' APPUCA'HON HULL JUNE i2. I913.

Patented July 29., 1919.

5 SHEETS-SHEET R. A. BONHAM. ELECIRICALLY CONTROLLED TBANSMISSION MECHANISM. APPLICATION FILED JUNE [2. 1918.

1,31 1,748 Patented'luly 29, 1919.

iNVEN TOR WITNESYSES 4/)? 0M I ATTORNEY R.- A. BONHAM.

ELECTRICALLY CONTROLLED TRANSMISSION MECHANISM.

APPLICATION FILED JUNE l2. P918.

Patented July 29, 1919.

R. A. BONHAM ELECTRICALLY CONTROLLED TRANSMISSION MECHANISM.

, V AP LICATION FILED JUNE 12. I9I8. 1,31 1,748. I at I d July 29 I EETS 3 SH HEE giwwfloz- Wmam, 124.30702mz UNITED STATES PATENT oFFIoE.

BOY A. BQNELAIM', F SPRINGFIELD, MISSOURI.

' trolled Transmission Mechani ELEcmcmir-conmonmn Application filed June 12,

To all whom it may concern: I

Be it known that I, Roy 'A. BONHAM, a citizen of the United States, residing at Springfield, in the county of Greene and State of Missouri, have invented new and useful Improvements in Electrically-Gonof which the following is a specification. This invention relates to electrically controlled transmission mechanism, and oneobject is to provide an improved construction wherebythe drive at high speedis directly from the driving element to the driven element, independent of the gears.

A further object is to provide improved means, for shifting the clutch members by -electrically operated devices.

A still further object is to provide a constructil-on in which the gear wheels of each I pair are always in mesh, and the disadvan- Y tages resulting from the shifting of the gears proper is avoided.

A still further object is to provide means whereby the necessary speed changes may be effected by an inexperlenced operator as well as by an experienced driver, and may also be effected with a minimum amount of current for operating thesolenoids.

Astill further object is to provide improved means for effecting the reverse, the reversing gears being stationary under normal conditions.

A still further'objectis to provide certain means of novel construction for-efi'ecting the control of the gear wheels directly imparting motion to 'the driven shaft.

With the foregoing and other objects in view, the invention consists in the novel construction, combination,and arrangement of elements hereinafter described and claimed.

In the drawings, Figure 1 is aplan view of the'gearing and. clutches,

Specification of Letters fatent.

of teeth 33 havin TRANSMISSION MECHANISM:

Patented July 29, 1919. 1918. Serial 170 239327.

through thestructureof Fig. 2, the solenoid cores and the yokes being in elevation,

Fig. 4 is a, detail showing a disk member operating in a tapered channel for shifting the position of one of the gear wheels on its shaft, in effecting the reverse,

Fig. 5 is a section through the roller clutch mechanism permitting the reverse gear wheels to remain stationary during the forward drive, v

I Fig. 6 is a 'sectionon line 6-6 of Fi .5,

Fig. 7 is a section through the gear w 'eel at the lower right hand rtion of Fig. 1, and showing the clutch-e ements associated with said gear wheel,

s. 8, 9 and 10 are perspective views showing the elements of Fig. 7 detached.

In carrying out my invention, I provide a casing 10 of any suitable constructlon and mount therein a counter-shaft 12, the main shaft being designated 14. The countershaft carries rigidly a, plurality of gear wheels designated at 15, 16, 17 and 18, and the main shaft carries loosely mounted thereon a plurality of 'gear wheels, one of which designated 20, and effects the reverse, gear wheels 21 and 22 controlling the first and second speeds respectively, a gear wheel of teeth 2'] on one side and a series of teeth 28 on the opposite side, the series first mentioned engagingthe teeth 29 on reverse gear 20, and the series of teeth 28 engaging the 1 teeth 30 on gear wheel 21. The clutch member 26 is also provided with two series of teeth, one of these being designated 32, and

having engagement, when the clutch member is thrown toward the left as shown in Fig. 1, with gear wheel 22, the other series clutch member 26 is thrown in the opposite direction, with the member 35 carried by the shaft 14.

The clutch members. 25 and 26'are under the control of yokes, one of these yokes being engagement, when the 3 5 and yoke 37 are similarlyoperated by the designated 37 andthe other being shown at 38. These yokes are rigidly connected with sleeves 39 and 40 respectivelyand the sleeves are controlled in part by slidablerods 41 and 42. The rod 41 is connected by a transverse member 43 with a rod 44 constituting the core of a plurality of solenoids shown at 45 and 46, Wherebythe position of'the yokes and, therefore, of the slidable clutch member 26 is controlled in part. The other of said clutch members is under the control of slidable member or rod 42 connected rigidly with a transverse member 48 and with a reciproca'ble rod 49 projecting at its ends into solenoids 50 and 51.

A plurality of pivotally mounted plate members 52 and 53 are supported by pins or bolts 54 and 55 projecting from the upper portion of the casing, these plate members each 'being slotted at one end, the slotted portion engaging pins 57 and 58 carried by connecting members 43 and 48. Each plate 52 or 53 18 provided with a rounded portion 60 engaged as indicated below foroperating the plate members and causing their slotted portions to throw the rods 44'and 49 longitudinally in view of the engagement with pins 57 and 58, for restoring elements 44 and 49 to normal position. 80

A rod 62 between s'lidable rods 41 and 42 is controlled by means of the main clutch element 64' operating with slide 64. Pivoted plates 52, 53, are operated atthe same time and in the same manner for'restoring clutch core 73. Whent rods 44 and 49 constituting the cores of the solenoids.

. The gearv wheel 23 is provided with a series of teeth and with a plurality of channels 71, the latter being engaged by the projecting members 72 of a clutch core 73 carried loosely on the driven shaft 1 4'. This clutch core 73' is provided withan-annular recess .75 having a plain wanes locatedopposite the toothed portion 77' of, clutch member v78 rigidly carried by shaft,14'. Balls 79 are locatedin the spaces between the teeth 77' and the lain surface 76 of he core is rotated in one direction by virtue of the rotation of gear wheel 23, the balls 7 9 areinactive, but when gear wheel 23 rotates in the'opposite direction, the balls tend to move toward the narrow portions of the s'p'aces'between the series of teeth 77 'and'the plain surface 76, thereb'ythrowing the clutch core 73 toward the left as shown in Fig. 7 and throwing the teeth 70 into engagement with the series of teeth 80 for driving the clutch element 82 and'imparting motion to the driven shaft 14 Ma forward direction.

member 82, the balls 7 9 assuming'their neutral position, or the positionshown in Fig. 7. The foregoing provides for the first and second s eeds.

In or er to secure the reverse, the clutch. member25 is thrown toward the left by the energization of the solenoid 50 causing the rotation of gear wheels 20 and 15, through idler 15, the rotation of countershaft 12,

gear wheel l8,and gear wheel 23. The gear.

wheel last named is engaged by a disk 85 mounted within a taperedv channel 86, and

the rotation of wheel 23 in the reverse direction causes the movement of said gear wheel toward the left as shown in Fig. 7 in view of the engagement between the disk and the tapered wall of channel 86. Upon throwing gear wheel 23 toward the left the series of teeth 70 mesh with the series 82 on clutch member 82, carried rigidly by shaft 14'. driven in a reverse direction. a

The solenoid 46 controls the third speed,

The shaft last named is 't-hen throwing clutch member 26 toward the right and causing its teeth 33 to engage the mem-- ber 35 carried ri idly b shaft 14 thereby effecting a direct rive, a l of the gear wheels, remaining stationary.

Reverse gear wheel 15 is formed with a hub portion or core cut away in the manner shown in Fig. 6, providing a surface permitting the roller'91 to move eccentri'cally with reference to shaft 12. A weighted portion92 limits the movement of theroll'er19lfin one. direction, holds gear wheel 15 nominallystationary, and al ords" a cam 'suufaceproviding a wed'gin'g. action, whereby the core 90 positively 'engages bore 94 of sleeve 95 carried by thegear wheel '16 when effecting thereverse.

'These elements are free in the opposite di-l rection, and allow the reverse-gearsto" reat any speed.-

member 98 carried by gear wheel 23 and re'-' reverse drive.

The solenoids are controlled by suitable mechanism within reach of the driver of the car, permitting the solenoids to be energized separately and selectively. 7 What is claimed is: f 1. In a device of the class described, the

main shaft, a plurality of gear wheels loosely mounted thereon, a driven shaft, a counter-shaft and a plurality of gear wheels rigidly mounted thereon, and means for rotating the driven shaft directly from the noel". main stationary during the forward drive main shaft and rotating 'the driven shaft from the main shaft through the counter shaft, said means 'includin a gear wheel 'main shaft, a plurality of gear wheels loosely mounted thereon, a driven shaft, a counter-shaft and a plurality of gear wheels rigidly mounted thereon, and means for roshaft, said means includin tating the driven shaft directl from the main shaft and rotating the riven shaft from the main shaft through the countera clutch core a slidable on the driven sha t, a gear wheel rotatable with the core and slidable thereon, and a clutch element on the driven shaft with series of teeth reversely arranged and engaged independently by the core or by the gear wheel.

device of the class described, a

;main shaft, 'a plurality of gear wheels loosely mounted thereon, a driven shaft, a. counter-shaft and a plurality of gear wheels 'ri'gidly mounted thereon, and means for rotatin-g the driven shaft directly from the 11 main shaft and rotating the driven shaft {130" from the main shaft through the countershaft, said means includin .a clutch core slidable on the driven sha a e thereon,

'. engaged independently by the core or b the I cally operated means forcausing the gear gearawheel, .and electrically and mec aniwheels on the main shaft to rotate there with. a 4. .,Ina deviceof the class described, a

" I niain shaft, a pluraliti of gear wheels loosely urality of clutch memwith teeth on opposite faces thereof, certain one of the clutch members,- and beinw provided withengaging devices cooper atmg'with the clutch members, another of said gear wheels being located on said shaft and constructed for engagement by the other of said clutch members, a driven' shaft,

' means carried thereby constructed to be engaged by said clutch member last named,

upon the opposite side thereof, a countershaft, a plurality of gear wheels rigidly car- 'ried thereby each of said wheels constantly a meshing with one of the wheels on the main shaft, a gear. wheel and means for mounting the latter on the driven shaft, said gear .wheel lastnamed meshing with one of the gear wheels on the counter-shaft, the mountv ing means for the gear wheel on the driven shaft including a core, and means for'placwas ingthe core in engagement with the driven gear wheel rotatable with the" core and slidab --and a clutch element on the drivenshaft with series of teeth reversely arranged and and means or rotatin shaft when the core is rotated in one direction.

5. In a device of the class described, a main shaft, a plurality of gear wheels loosely mounted thereon, a plurality of clutch members slidable on the shaft and each rovided.

with teeth on opposite faces thereo certain of the gear wheels being located on opposite sides of one of the clutch members, and be ing provided with engaging devices coiiper-v ,ating with theelutch members, another of said gear wheels being located on said shaft and constructed for engagement by the other of said clutch members, a driven shaft, means carried thereby constructed to be engaged by said clutch member last, named, upon the opposite side thereof, a countershaft, a pluralityof gear wheels rigidly carried thereby meshing with one of the wheels on the main shaft, a gear wheel and means for mounting the latter on. the driven shaft, said gear wheel last named meshingwith one of the gear wheels on counter-shaft, the mounting means for the gear wheel on the driven shaft including a core, and means for placing the core in engagement with the driven shaft when the core is rotated in one direction, and means for" shifting said gear wheel last named for causing the latter to rotate the driven shaft in a reverse direction.

6 .In a device of the class described, a mam shaft, a counter-shaft, a pluralityof pairs of continuously meshing ear wheels carried by the shafts, means for riving each each of said wheels constantly pair of gear'wheels from the main .shaft independently of the others, a driven shaft, a

on the driven shaft having two sets of teeth one of the gear wheels, a rigid clutch element" reversely arranged, means for shifting the core longitudinally for engaging one of said series of teeth and comprising a-plurality of balls bearingagainst a fixed element on the driven shaft havinginclined walls, said balls bearing a ainst oneface of the core, and a disk mem er engaging one face of the gear wheel last named, and causing engagement between the gear wheel and the other series of teeth on' the rigid clutch element of the driven shaft.

- i In a device of the class described, a mainshaft a pluralit of gear wheels loosely riven shaft, a counter I mounted thereon a shaft and a lurality of gear wheels thereon,

the driven shaft directly from the main s aft and rotating the driven shaft from the main shaft through the countershaft said means including a shaft with. series of teeth reversely arranged and engaged independently by the core or by the gearwheel last named, and a device 1 0 for automatically'shifting the gear wheel the core and slidablev thereon, a clutch ele-- 10 last named to the series of teeth'v efi'ecting ment'en the-driven shaft with series of teeth the reverse drive. reversely arranged, and engaged independ-' 8-. In a device of the class described, a ently by the core or by the gear wheel last main shaft, a driven shaft, a counter shaft, named, andav disk movable in a' tapered and gear Wheels mounted on said shafts, one channel engaging the gear wheel last nalned, 15 r 0f the gear wheels being carried by the for shifting the latter in one direction.

, driven shaft, a clutch core slidable on the In testimony whereof I aflix my signature. driven shaft, a gear wheel rotatable with I I ROY A. BONHAM. 

